The current highest score of {xoi} (or {fi'oi})
http://jbovlaste.lojban.org/dict/xoi
and new {soi}
http://mw.lojban.org/papri/new_soi
as bridi relative clause are defined with assertion about their (semantic) scope.
xoi:
Right-scoping adverbial clause: encloses a bridi and turns it into an adverbial term; the antecedent (ke'a) of the enclosed bridi stands for the outer bridi {lo su'u no'a ku} (the bridi in which this xoi term appears), including all the other adverbial terms (tags...) within this bridi located on the right of this xoi term (rightward scope).
soi:
soi terms always have top-scope, meaning they scope over any quantifiers, negations or tenses that precede them. When multiple soi are used in the same bridi, they are understood to have equal scope.
{xoi} and new {soi} are currently in selma'o SOI of la ilmentufa, and SOI_clause is treated as tag_term:
http://mw.lojban.org/extensions/ilmentufa/camxes-exp.js.peg
tag_term = expr:((!gek tag free* (sumti / KU_elidible free*) / NA_clause free* KU_clause free* / !gek !ek !joik_jek !gihek NA_clause free* KU_elidible free* / SOI_clause free* subsentence SEhU_elidible free*) (joik_jek tag_term)*) {return _node("tag_term", expr);}
Generally, Lojban terms have scope that spans over all the following terms in a sentence. The scope of terms is modified by a prenex of a statement. If {xoi}-clause and new {soi}-clause are defined as having scope, it should not be a term. If they are defined as terms, {xoi} has harmony with scope of other terms, but {soi} becomes an exception of scope of terms, otherwise loses its power as left-scope.
Which do you prefer:
1. keep the current situiation, and regard {soi} as an exception of scope of terms;
2. keep the current situiation, and let {soi} loose the power of left-scope ({soi} becomes the same as {xoi});
3. create a new grammatical property for {soi}, and keep {xoi} as it is;
4. allow {soi}-clause become a "free", that has the same property as {sei}-clause (easier than 3.);
5. other.
re'i